Table 2.
Quality of Life Measurements at Study Entry by Household Income
| <$20,000 (n = 308) | $20,000–$49,999 (n = 352) | $50,000–$99,999 (n = 124) | ≥$100,000 (n = 35) | p value | |
|---|---|---|---|---|---|
| Functional disability, defined as estimated DASI METsa <4.7 | 31% | 13% | 6% | 0% | <0.0001 |
| Fair/poor perceived health | 57% | 34% | 21% | 12% | <0.0001 |
| Low perceived quality of lifeb | 10% | 6% | 4% | 3% | <0.0001 |
| Health impairs work or lost days from work due to health | 81% | 77% | 40% | 60% | 0.023 |
| History of psychosocial stress | 34% | 31% | 33% | 49% | 0.204 |
| Living alone at 5 years of follow-up | 45% | 0% | 0% | 0% | 0.003 |
a
DASI METs, Duke Activity Status Index estimate of metabolic equivalents.
b
Perceived quality of life ranged from 0 to 3 out of 10, with 10 being excellent.